| Titre : |
Recent progress in synthesis of antifogging agents and their application to agricultural films : a review |
| Type de document : |
texte imprimé |
| Auteurs : |
Sicong Ren, Auteur ; Li Wang, Auteur ; Haojie Yu, Auteur ; Muhammad Haroon, Auteur ; Raja Summe Ullah, Auteur ; Fazal Haq, Auteur ; Rizwan Ullah Khan, Auteur ; Shah Fahad, Auteur |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 445-455 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Composés organiques -- Synthèse
Essais (technologie)
Films plastiques
Matières plastiques -- Emploi dans l'agriculture
Surface anti-buée
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Antifogging agents are very important for use on agricultural films. Fogging reduces crop yield and causes other negative effects. To overcome fogging problems on agricultural films, several approaches including surface coating and reactive extrusion methods have been used. To date, researchers have designed a variety of agents to prepare antifogging films. The mechanism and rules for the composition of such agents have also been reported. However, reported antifogging films do not exhibit satisfactory results. Therefore, antifogging methods require further improvement. In this review, different preparation methods for antifogging agents and films are summarized, along with the advantages and disadvantages of each method. Moreover, test methods for antifogging performance are introduced. |
| Note de contenu : |
- ANTIFOGGING AGENTS AND FILMS : Definition of antifogging and its importance in agriculture - Antifogging mechanism - Types of antifogging agent - Methods for preparing antifogging films
- TEST METHODS FOR ANTIFOGGING PERFORMANCE : Determining of first-drop time and ten-drop time - Determination of transmittance - Determination of high-temperature duration
- FIGURES : 1. Antifogging mechanism of ilms - 2. Structure of fatty alcohol polyoxyethylene ether and alkylphenol polyoxyethylene ether - 3. Preparation of antifogging film by physical blending - 4. Procedure for synthesis of gemini stearic acid poly(glycerol ester) - 5. Procedure for synthesis of triethanolamine laurate ester, where R = CH3(CH2)10 - 6. Synthesis of diglycerol-2,9-dihexyldecanedioate - 7. Preparation of PMPC-g-PE and PMPC-g-PP sheets by "grafting from" method using PE-MI and PE-MI press sheets - 8. Schematic of UV-induced graft copolymerization of PEGMA onto plasma-pretreated LDPE film surface - 9. Principle of antifogging test - 10. Performance of uncoated and antifogging polyethylene film
- TABLES : 1. Different types of nonionic surfactant and their chemical formula - 2. Graft copolymerization through reaction extrusion using different monomers - 3. Comparison of properties of gemini and traditional surfactant - 4. Light transmittance of antifogging films with monoolein at different concentrations - 5. Accelerated dripping properties of commercial film and LLDPE-g-GMMD films |
| DOI : |
10.1007/s11998-018-0051-x |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-018-0051-x.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30741 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 3 (05/2018) . - p. 445-455
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